XML 102 R67.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Note 13 - Oil and Natural Gas Producing Activities (Unaudited) - Costs Incurred (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Unproved $ 269 $ 178
Proved
Exploration
Development (1) [1] 98,141 106,583
Total (2) [2] $ 98,410 $ 106,761
[1] Includes asset retirement costs of $0.1 million in 2019 and less than $0.1 million in 2018.
[2] Substantially all the costs incurred related to the Haynesville Shale Trend.